Home / 12,507.91-18,754.93-5,117.56

Finding the Fourth Proportional to 12,507.91, 18,754.93 and 5,117.56

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Solution

The fourth proportional to 12,507.91, 18,754.93 and 5,117.56 is: 7,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507.91 : 18,754.93 = 5,117.56 : x
  2. Step 2: Convert to fraction form
    12,507.91/18,754.93 = 5,117.56/x
  3. Step 3: Cross multiply
    12,507.91x = 18,754.93 × 5,117.56
  4. Step 4: Simplify right side
    12,507.91x = 95,979,479.57
  5. Step 5: Solve for x
    x = 95,979,479.57/12,507.91
  6. Step 6: Final answer
    x = 7,673.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.